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Established in 2000, Zhejiang Yongtailong Electronic Co., Ltd. is located in the center of Shanghai, Hangzhou and Suzhou cities. YTL is a professional China DEM3B302 Three Phase High Refresh MID Din Rail Meter Suppliers and DEM3B302 Three Phase High Refresh MID Din Rail Meter Company. With more than 20 years of energy metering experience, we devote ourselves to providing competitive projects and creating value for customers. YTL was one of the first companies in the domestic market with which had an internal R&D department as well as international sales business. Since our foundation in 2000 we have grown to a manufacturer which complies and meet to many specifications from our national and international partners. At present our export volume makes us a leading company for technology and product export to more than 50 countries throughout the world. With provincial high-tech enterprise R&D center, YTL is the Top 100-enterprise with most investment value in Zhejiang. And“Yongtailong”is the famous brand of Zhejiang. For any new products of customers, we will communicate with customers very professionally, listen to their opinions and give useful suggestions to ensure that excellent quality products are made.
DEM3B302 Three Phase High Refresh MID Din Rail Meter Suppliers
DEM3B302 Three Phase High Refresh MID Din Rail Meter
The DEM3B302 is a three-phase direct-type energy meter that employs a high-speed processing chip solution, specifically designed for high-speed metering scenarios such as photovoltaic systems, energy storage systems, and factory energy monitoring. Simultaneously, its wide operating temperature range of -40℃ to 70℃ meets the requirements for application in outdoor charging piles exposed directly to sunlight.
- Voltage input
- Current input
- Communication parameters
- Function parameters
- Structure
- Dimension
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voltage connection
direct
rated voltage
120~240VLN/208~415VLL
voltage tolerance
from 0.8 to 1.15 Un
frequency
50/60Hz
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current connection
direct
basic current
（Ib）
5A
minimum current
（Im in）
0.15A
Maximum current
（Imax）
80A
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communication method
RS485
protocol
RS485 compatible with Modbus RTU, DLT/645-2007
communication type
bidirectional
RS485 connection type
RS485 configuration parameters
Modbus address( from 1 to 247)
Baud rate（9.6/19.2/38.4/57.6/76.8/115.2 kbps）
Parity check (none/odd/even)
Refresh time
≤100ms
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Measurement function
Monitor energy consumption, key electrical variables (including active and reactive power, power factor), and calculate current/voltage harmonic content and apparent energy
Measurement method
Forward and reverse metering, net bi-directional; first record single-phase then calculate, then separately account for kwh+ and kwh-, absolute value measurement.
Tariff
TOU tariff, 4 tariffs by default, 8 time periods.
Self-diagnosis
EEP Detection
Event alarm
Monitor variable alarms (kW, A, V L-N, V L-L, PF, Kvar, kVA), with adjustable activation thresholds and delays
Firmware upgrade
Local upgrade
Clock
Network automatic time calibration, temperature compensation.
Other functions
WIRING CHECK,Screen saver function, page filter, and runtime hour counter.
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Welcome To A National High-tech Enterprise
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2000
Established In
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500+
Employees
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60+
Export Country
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500+
Design Right Patent
YTL Honor
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MID
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KEMA
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DLMS
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IEC
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YTL News
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2026-03-03The Prevalence of This Concern When households replace traditional mechanical electricity meters with new smart meters, some users may wonder whether the meter...
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Working Principle of Electronic Instruments: Precise Sensing in the Digital World
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The "Energy Nerve" of Smart Communities: Smart Meters Connecting a Green Lifestyle
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China DEM3B302 Three Phase High Refresh MID Din Rail Meter Company